Whiffletree



NoModeL) C. R. WALTER J'. E. BLACKBURN.

WHIPFLETREE. No. 815,361. Patented Apr. 7, 1885.I

INVEJvToRs UNITED STATESd PATENT OFFICE.

CHARLEs R. WALTER AND JACoB E. BLACKBURN, CE FREDERICKTCWE; oHIo. f

WHIFFLETREE.

SPECIFICATION forming part of Letters Fatent No. 315,361, dated April 7,1885.

Application filed December 11, 1884. (No model.)

To all whom it may concern:

Beit known that we, CHARLES R. WALTER and JACOB E. BLACKBURN, citizensof the United States, residing at Fredericktown, in the county of Knoxand State of Ohio, have invented certain newand useful ImproveinentsinSpring Attachments for Whifiietrees, of which the following is aspecification, reference being hadtherein to the accompanying drawings.i

This invention relatesrto spring-whiffletrees; and it` consists in theparts which will be hereinafter described, and pointed out in theclaims. l Y

In the accompanying drawings, Figure l represents a top plan view of awhiffietree provided with our improvements. Fig. 2is

Y a likeview, enlarged, of one end of the whifiietree with improvementsattached. Fig. 3 is a rear view of the parts shown in Fig. 2.

In the three views the rear ends of the traces are shown secured to thecasting on the outer end of the spring.

The letter' A represents the whiffletree, provided on `its outer endswith thimbles B. Said thimbles are each provided with a T-shaped head,C, having a slot, C', therein'for the reception of the trace I). Thetrace passes through this slot, and it is attached tothe outer end of aspring, to be hereinafter specilied.

E represents a casting provided with a longitudinal face-recess for thereception and retention of the inner end of the bar-spring F. The outerside of the casting E conforms to the surface Contour of that portion ofthe whiiietree with which it is brought in contact.

E indicates a bridge or cross-piece on the casting E, under which theinner end of the spring F rests.

G indicatesa threaded bolt and nut for securingthe spring in its seat inthe casting E. The spring is provided with an opening through which thebolt passes.

G represents the clinched head of the bolt.

The bolt passes through the spring, casting E, and whifdetree. The outerend of the spring F is provided with altrace-catch, F; The outer end ofthis catch has an enlarged dat with a projection, H, on the rear side.This head to prevent the trace from slipping off."y the end thereof. Thethimble B is provided projection is to limit the forward movement of thespring when the traces are drawn for- The thimble, slotted head C, andpro- Ward. jection H are formed integral, although the head C may beseparately formed with a screw-point, whereby it may be screwed into theouter end of the whiffietree. The normal position of the spring is aboutan angleof forty-five degrees from the longitudinal plane fold: First,it prevents a shock when the traces are suddenly drawn forward, and,secondly,

it draws back on the traces when the vehicle is descending a hill, orthe horses back. This The object of this is t,wo-`

spring, under those conditions, keeps the traces taut and prevents thetrace-loops from disengagement with their respective catches. Havingthus described our invention, what we claim as new, and desire to secureby Let-` y ters Patent, is y, g l. A whitdetree provided on its outerend with a slot-ted head for the reception of the trace, a spring havingone end secured to the l whiftletree and the other end extending outfward and provided with an enlarged head,

substantially as described, and Vfor the `purf` poses set forth. y 2. Awhifietree provided on its outer en with a thimble, slotted head, andprojecting spring-stop, said whiffletree being also provided with abar-spring having its inner en d j secured thereto, the outer end ofsaid spring having an enlarged head, substantially asand l for thepurposes set forth. l

3. A whifietree provided on its-outer end "d l with a slotted head, therecessed casting E,.

and the barspring F, having the enlarged head-piece, the parts beingunited and secured in the manner and for the purposes specified.

In testimony whereof we afiix our signatures in presence of twowitnesses.

CHARLES B.. WALTER. JACOB-E. BLACKBURN.

Witnesses:

Trios. E. BARRCW J. P. HENRY.

